[v3,3/5] arm64: dts: ti: k3-am62a: Enable UHS mode support for SD cards

Commit Message

Judith Mendez April 23, 2024, 3:17 p.m. UTC

From: Vignesh Raghavendra <[e-mail]>

Hook up required IO voltage regulators and drop no-1-8-v to support UHS
modes on SD cards.

Fixes: 5fc6b1b62639 ("arm64: dts: ti: Introduce AM62A7 family of SoCs")
Signed-off-by: Vignesh Raghavendra <[e-mail]>
[Judith: Remove no-1-8-v for sdhci2, keep otap-del-sel-legacy=0,
add fixes tag, reword commit]
Signed-off-by: Judith Mendez <[e-mail]>
---
Changes since v2:
- no change
---
 arch/arm64/boot/dts/ti/k3-am62a-main.dtsi |  2 --
 arch/arm64/boot/dts/ti/k3-am62a7-sk.dts   | 21 +++++++++++++++++++++
 2 files changed, 21 insertions(+), 2 deletions(-)

Patch

diff --git a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
index aa1e057082f08..6652701d3e3b8 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
@@ -573,7 +573,6 @@  sdhci1: mmc@fa00000 {
 		ti,itap-del-sel-sd-hs = <0x0>;
 		ti,itap-del-sel-sdr12 = <0x0>;
 		ti,itap-del-sel-sdr25 = <0x0>;
-		no-1-8-v;
 		status = "disabled";
 	};
 
@@ -597,7 +596,6 @@  sdhci2: mmc@fa20000 {
 		ti,itap-del-sel-sd-hs = <0x0>;
 		ti,itap-del-sel-sdr12 = <0x0>;
 		ti,itap-del-sel-sdr25 = <0x0>;
-		no-1-8-v;
 		status = "disabled";
 	};
 
diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index f241637a5642a..fa43cd0b631e6 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -113,6 +113,20 @@  vcc_3v3_sys: regulator-4 {
 		regulator-boot-on;
 	};
 
+	vddshv_sdio: regulator-5 {
+		compatible = "regulator-gpio";
+		regulator-name = "vddshv_sdio";
+		pinctrl-names = "default";
+		pinctrl-0 = <&vddshv_sdio_pins_default>;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		vin-supply = <&ldo1>;
+		gpios = <&main_gpio0 31 GPIO_ACTIVE_HIGH>;
+		states = <1800000 0x0>,
+			 <3300000 0x1>;
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
@@ -342,6 +356,12 @@  main_gpio1_ioexp_intr_pins_default: main-gpio1-ioexp-intr-default-pins {
 			AM62AX_IOPAD(0x01d4, PIN_INPUT, 7) /* (C15) UART0_RTSn.GPIO1_23 */
 		>;
 	};
+
+	vddshv_sdio_pins_default: vddshv-sdio-default-pins {
+		pinctrl-single,pins = <
+			AM62AX_IOPAD(0x07c, PIN_OUTPUT, 7) /* (M19) GPMC0_CLK.GPIO0_31 */
+		>;
+	};
 };
 
 &mcu_pmx0 {
@@ -580,6 +600,7 @@  &sdhci1 {
 	/* SD/MMC */
 	status = "okay";
 	vmmc-supply = <&vdd_mmc1>;
+	vqmmc-supply = <&vddshv_sdio>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_mmc1_pins_default>;
 	disable-wp;